Improvement in the modes of constructing wooden pulley-wheels



A. NEWELL.

Modes of Constructing Wooden Pulley-Wheels. N0, 138,518, Patented May 6,1873.

AM, PHoro-.fnHoeRAPHlccz-a. mm'asomve'spnocsss) `NrrE AUGUSTUS NEWELL, OF ERIE, PENNSYLVANIA.

Specification forming part of Letters Patent No. 138,518, dated May 6, 1873; application led March 5, 1873.

To all rwhom t may concern:

Be it known that I, AUGUSTUS NEWELL, of Erie, in the county of Erie and State of Pennsylvania, have invented an Improved Mode of ConstructingWooden Pulley-Wheels, of which the following is a specification:

The nature of my invention consists in providing a new and improved mode of constructing Wooden belt-pulleys. The object of my invention is to provide a means whereby Wooden belt-pulleys can be constructed which shall be strong and durable, easy to construct, and cheap. By the use of Wooden pulleys onlineshaftin g much friction and power are saved because there is much less Weight on the shaft. When Wooden pulleys are used, if properly constructed,the cost of fitting up a factory is much less than when iron pulleys are used; hence the utility of my invention. Pulley- Wheels constructed as hereinafter described can be manufactured and sold as an article of manufacture.

My invention is illustrated in the accompanying drawing, as follows:

Figure lis a plan view of one side of a Wheel constructed in accordance with my invention. Fig. 2 is a section view of the same taken through the line H II in Fig. 1.

My improved Wheel consists of two parts, the body A, and the iianges B. The body of my wheel is composed of a series of segmental pieces of board, A A A, &c. This board may be of any size or thickness desired. The radial sides of the segmental pieces are jointed and then grooved on each face for the re ception of a tongued strip, E. These pieces after being thus constructed can be put together, and the tongue-strip E can be put in place and the joints all glued together. We now have a solid wheel, with the grain of the Wood running towardthe center from all sides. This gives strength to the wheel, which cannot be obtained in any other Way. After the Wheel is thus fashioned, a circumferential groove, d d, is cut on each side, as seen in Fig. 2l. The flange or rim of the pulley is made of a series of arc-like segments, B B B,

85e., and b b b b, &c., which are tongued-andgrooved together, as shown in Fig. 2. The mode of putting these together and upon the Wheel is as follows: The inner set Z1 b b, Src., is placed Within a hoop not unlike, in its office, a truss-hoop. When these are placed in the hoop, the ends are coated with glue, so that the segments when they leave the hoop will forni a solid circle. When thus prepared, the tongue side is coated With glue, and it is then adjusted with the circumferential groove d. The segments B B B are prepared and adjusted to the Wheel the same as the others. These different layers of segments are placed one above the other, and in such a manner that they break joints.

It will now be seen that when this rim is thus constructed, the grain of the wood nearly follows the circumference of the wheel. The parts of the wheel when thus constructed, arranged, and glued together, form a most perfect Whole. The economy of material, the economy of strength of material, and the facility of construction, accomplished by my invention, I believe to be incident to it."

In the center of the wheel, as shown, there is a hole, F, for the shaft, which is. of sufcient size to admit of any-sized shaft. The

holes D D, at each side, are for the recept-ion oi'a clutch which is apart of the collar by which the Wheel is secured to the shaft. The holes D being placed in the position shown, the

strain upon the wheel is carried from the center to a point some distance out in the body, which arrangement greatly economizes the strength of the Wheel.

What I claim as new and desire to secure by Letters Patent, is as follows:

A Wooden pulley-wheel, constructed of quadrant-like segments A A A, 85e., and. arc-like segments B B B and b b b, Src., arranged and attached together, substantially as and for the purposes herein named.

AUGUSTUS NEWELL. lWitnesses:

, JN0. K. HALLocK,

WESLEY MALIGK.

TENT OFFICE. 

